diff --git a/lib/pkp b/lib/pkp
index 1994e9d8c6f..9e6c5a1b3b7 160000
--- a/lib/pkp
+++ b/lib/pkp
@@ -1 +1 @@
-Subproject commit 1994e9d8c6fc8aec0e31765adc6b34a4c2a2123d
+Subproject commit 9e6c5a1b3b7ed54692b5281f4b5d6f520dbe3c11